which regression equation best models the data? 
a) y= 7.57 sin(0.55x + 0.68) + 64.40
b) y = 7.57 sin(0.68x + 0.55) + 64.40
c) y= 7.57 sin(-0.55x + -0.68) + 64.40
d) y = 7.57 sin(-0.68x + -0.55) + 64.40
                                             
                                          
                                          
                                        
											 
					                  